Table 3.

Effect of injectable vitamin C (VC) treatment on postweaning performance of early-weaned (65 ± 11 d of age) beef steers

	WEAN1		SEM2	P-value
	VC	SAL
Steers (N)	45	46
Body weight, kg
Day 0	88	93	2.05	0.13
Day 143	97	97	0.94	0.72
Day 483	136	136	1.71	0.83
ADG3, kg/d
Day 0–14	0.52	0.56	0.072	0.71
Day 14–48	1.65	1.58	0.059	0.44
Day 0–48	0.98	0.97	0.036	0.83
DMI3, kg/d
Day 0–14	1.84	2.01	0.065	0.06
Day 14–48	3.83	3.90	0.085	0.53
Day 0–48	3.23	3.34	0.074	0.29
G:F3
Day 0–14	0.263	0.278	0.0372	0.79
Day 14–48	0.424	0.404	0.0128	0.29
Day 0–48	0.301	0.289	0.0094	0.37

¹WEAN: Treatments applied at weaning on day 0 including intramuscular injections (20 mL per steer) of VC (250-mg sodium ascorbate per mL; 5 g per steer) or saline (SAL).

²Greatest SEM of any treatment reported.

³Day 0 BW utilized as a covariate in performance analysis.